AnarchyExploitFixesFolia/src/main/java/me/xginko/aef/modules/packets/SequenceCrash.java - master - minecraftbackup/AnarchyExploitFixes

AnarchyExploitFixesFolia/src/main/java/me/xginko/aef/modules/packets/SequenceCrash.java

49 строк2 KB

Ginko

2.7.2 release (#233)

13 авг 2024, 08:21

13 авг 2024, 08:21d20da6e

package me.xginko.aef.modules.packets;

import com.github.retrooper.packetevents.event.PacketListenerPriority;
import com.github.retrooper.packetevents.event.PacketReceiveEvent;
import com.github.retrooper.packetevents.protocol.packettype.PacketType;
import com.github.retrooper.packetevents.wrapper.play.client.WrapperPlayClientPlayerBlockPlacement;
import com.github.retrooper.packetevents.wrapper.play.client.WrapperPlayClientPlayerDigging;
import com.github.retrooper.packetevents.wrapper.play.client.WrapperPlayClientUseItem;
import me.xginko.aef.utils.PlatformUtil;

public class SequenceCrash extends PacketModule {

    private final boolean log, kick;

    public SequenceCrash() {
        super("patches.sequence-crash-patch", PacketListenerPriority.HIGHEST);
        config.addComment(configPath + ".enable", """
                Patches a variety of lag/crash exploits that involves sending packets\s
                with invalid sequences.""");
        this.log = config.getBoolean(configPath + ".log", false);
        this.kick = config.getBoolean(configPath + ".kick-player", false);
    }

    @Override
    public boolean shouldEnable() {
        return config.getBoolean(configPath + ".enable", true) && PlatformUtil.getMinecraftVersion() >= 19;
    }

    @Override
    public void onPacketReceive(PacketReceiveEvent event) {
        if (event.isCancelled()) return;

        int sequence;
        if (event.getPacketType() == PacketType.Play.Client.PLAYER_BLOCK_PLACEMENT) {
            sequence = new WrapperPlayClientPlayerBlockPlacement(event).getSequence();
        } else if (event.getPacketType() == PacketType.Play.Client.PLAYER_DIGGING) {
            sequence = new WrapperPlayClientPlayerDigging(event).getSequence();
        } else if (event.getPacketType() == PacketType.Play.Client.USE_ITEM) {
            sequence = new WrapperPlayClientUseItem(event).getSequence();
        } else {
            return;
        }

        if (sequence < 0) {
            event.setCancelled(true);
            onCancel(log, kick, event.getUser());
        }
    }
}